Ofgem fines SSE £2.06 million for failing to publish inside information about the wholesale energy market

Press release

Publication date


Industry sector

Generation and Wholesale Market
  • SSE failed to publish, in a timely manner, information about the future availability of its generation capacity.
  • This was likely to have had a significant effect on forward wholesale electricity prices.
  • SSE breached legal requirements on the publication of inside information because it made the wrong decision about whether it was in possession of inside information

The £2.06m fine, the first relating to the publication of inside information in energy markets in GB and the EU, sends a strong message to SSE, and other wholesale energy market participants, about the importance of fully complying with REMIT rules. 

Under the Regulation on Wholesale Energy Market Integrity and Transparency (REMIT), ‘inside information’ is information which is likely to significantly affect the price of wholesale energy.  Market participants must publish inside information in an ‘effective and timely’ manner. 

On 22 March 2016, SSE signed a non-binding Heads of Terms (1) agreement with National Grid (NGET) to provide ‘Black Start’ (2) capability at any one of three generating units at its Fiddler’s Ferry power station from 1 April that year. Previously, SSE had announced that the units were likely to close from that date.

With a combined generating capacity equivalent to 3% of GB peak electricity demand, these units had (3) a significant impact on GB demand and supply, affecting wholesale prices.

Ofgem’s investigation found that SSE’s non-binding agreement with NGET on 22 March 2016, and its decision to retain Transmission Entry Capacity (4) for the three units on that date, reversed the likelihood that the three units would close. Consequently, the agreement was likely to have a significant effect on wholesale prices, and was therefore inside information.

SSE did not publish this information in a timely manner. Instead it waited until the 30 March 2016 to make an announcement once it had finalised the contract.

SSE’s delay in making a public announcement resulted in four days trading (5) without the market knowing that more generation was likely to be available than previously thought.  It is likely this led to some market participants paying more for wholesale electricity than they should have.

The investigation found that whilst the company did consider whether it was in possession of inside information on 22 March 2016, it failed to reach the correct conclusion and publish on that date. In the course of its investigation Ofgem did not find evidence that SSE acted in bad faith. 

Ofgem has imposed a £2.06m fine on SSE for the breach. In reaching this decision, Ofgem has taken into account that REMIT was a relatively new obligation at the time of the breach, that guidance on the publication of inside information of this type was limited, and that the finding was the first of its kind under REMIT. 

Future failures to publish inside information in an effective and timely manner are likely to result in higher penalties. 

The finding highlights the importance for companies of recognising that the information which relates to an uncertain outcome, such as intermediate stages in negotiations, can be inside information under REMIT if it is likely to significantly affect prices. As such, it must be published in a timely and effective manner. 

SSE fully co-operated with Ofgem’s investigation. By settling this investigation early, the company has qualified for a 30% discount for early settlement from the proposed approximate £2.6 million penalty.

Jonathan Brearley, chief executive at Ofgem, said: “SSE’s failure to publish inside information in a timely and effective manner resulted in market participants trading for four working days under a false impression of supply availability in GB’s electricity market.

This meant that market participants were likely to have paid higher prices than they needed to, and risked undermining confidence in the wholesale electricity market.

This fine sends a strong message to market participants that they must be familiar with, and keep to, their obligations under REMIT rules or face enforcement action by Ofgem.”

Notes to editors

For more details see our finding that SSE Generation Limited has breached Article 4 (obligation to publish inside information) of Regulation (EU) No 1227/2011 of the European Parliament and of the Council of 25 October 2011 on wholesale energy market integrity and transparency (‘REMIT’).

  1. A Heads of Terms agreement sets out the terms of a commercial transaction agreed in principle between parties in the course of negotiations. Heads of terms evidence serious intent, but do not legally compel parties to conclude a deal.
  2. Black Start is the procedure to recover from a total or partial shutdown of the transmission system which has caused an extensive loss of supplies. This entails isolated power stations being started individually and gradually being reconnected to each other in order to form an interconnected system again.
  3. Fidder’s Ferry power station closed on 31 March 2020.  
  4. Transmission Entry Capacity (TEC) is the commercial right to export power on to the National Grid.
  5. As Easter fell at the end of March 2016, there were four trading days for forward wholesale electricity markets between 22 March and 30 March 2016.

For further press information contact:

For media, contact

Ruth Somerville: 0207 901 7460/ 07990 139504

Media out of hours mobile: 0792 882 9894 (media calls only)

General enquiries (non-media)

If you are an energy customer looking for help and advice, including complaints about energy firms, please see our Household gas and electricity guide. Citizens Advice also provide a free, impartial helpline service across a range of issues on 0808 223 1133.

We also regularly share news and post general advice to help consumers get the most out of their energy services via our @Ofgem twitter and Facebook pages. If you have an enquiry or complaint relating to Ofgem’s policies or functions, contact us at consumeraffairs@ofgem.gov.uk or on 020 7901 7295.

For all other non-media related enquiries, please visit our Contact us page.

About Ofgem

Ofgem is Britain’s independent energy regulator. Our role is to protect consumers now and in the future by working to deliver a greener, fairer energy system. We do this by:

  • Working with Government, industry and consumer groups to deliver a net zero economy at the lowest cost to consumers.
  • Stamping out sharp and bad practice, ensuring fair treatment for all consumers, especially the vulnerable.
  • Enabling competition and innovation, which drives down prices and results in new products and services for consumers.

For facts, figures and information about Ofgem’s work, see Energy facts and figures or visit the Ofgem Data Portal.

For energy insights and updates straight to your inbox from Ofgem, please subscribe.

Follow us on Twitter @ofgemLinkedIn and Facebook.